taxes Property Tax Assistance

2018 Confidence Interval Detail

070/Ellis
070-907/Italy ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 12,650,274 0.7023 18,012,636 11 236 .136404845
A 16,173,719 0.8632 18,736,931 10 192 .027618927
A 17,391,830 0.9230 18,842,719 11 155 .024507734
A 17,784,172 0.9126 19,487,368 11 89 .019898908
E 32,152,835 0.8495 37,849,129 21 279 .065519844
F1 3,148,740 0.9806 3,211,034 8 25 .034622812
F1 4,140,613 0.8592 4,819,149 5 7 .267924942
F1 2,596,270 0.7791 3,332,396 2 2 .053179831
L1 1,386,091 1.0024 1,382,772 8 21 .006087692
L1 1,715,010 1.0191 1,682,867 4 7 .001021188
L1 1,828,680 1.0920 1,674,615 2 3 .047158668
Random Totals: 110,968,234   129,031,616 93 1,016  
Catg D1 Exception Values: 6,760,125   4,507,217      
Catg F1 Exception Values: 5,891,370   6,257,108      
Catg L1 Exception Values: 4,903,580   4,904,993      
Total Test Values (4): 128,523,309   144,700,934      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 7,235,046

Confidence Interval Values (5)

Local Test Value: 128,523,309 (Outside Confidence Interval)
State Lower Limit: 137,465,888 (State Test Value minus Margin of Error Percent)
State Upper Limit: 151,935,980 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 124,339,724 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories